제출 #211242

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
211242		Lawliet	Magic Tree (CEOI19_magictree)	C++14	0 / 100	64 ms	2160 KiB

magictree

#include <bits/stdc++.h>

using namespace std;
typedef long long int lli;

const int MAXK = 30;
const int MAXN = 100010;
const int INF = 1000000010;

int n, m, k;

int t[MAXN];
int w[MAXN];
int dp[MAXN];
int val[MAXN];

vector< int > v;

int main()
{
	scanf("%d %d %d",&n,&m,&k);

	for(int i = 2 ; i <= n ; i++)
		scanf("%d",&k);

	for(int i = 1 ; i <= m ; i++)
	{
		int node;
		scanf("%d",&node);
		scanf("%d %d",&k,&val[node]);
	}

	for(int i = n ; i > 1 ; i--)
		if( val[i] != 0 ) v.push_back( val[i] );

	int ans = 0;

	for(int i = 1 ; i <= n ; i++)
		dp[i] = INF;

	for(int i = 0 ; i < v.size() ; i++)
	{
		int ind = upper_bound( dp + 1 , dp + n + 1 , v[i] ) - dp;

		dp[ind] = v[i];
		ans = max( ans , ind );
	}

	printf("%d\n",ans);
}

컴파일 시 표준 에러 (stderr) 메시지

magictree.cpp: In function 'int main()':
magictree.cpp:41:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(int i = 0 ; i < v.size() ; i++)
                  ~~^~~~~~~~~~
magictree.cpp:21:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  scanf("%d %d %d",&n,&m,&k);
  ~~~~~^~~~~~~~~~~~~~~~~~~~~
magictree.cpp:24:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&k);
   ~~~~~^~~~~~~~~
magictree.cpp:29:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d",&node);
   ~~~~~^~~~~~~~~~~~
magictree.cpp:30:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d %d",&k,&val[node]);
   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

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